"Also, when a player dies, instead of falling over and disappearing it'd be cool if they'd throw down their gun and walk, head hanging, back to base and then wait till they can respawn. Then, if someone shot them (it'd happen) they could face that direction and shake their fist."
No, it would be too hard to tell who's alive and who's not. Also, it'd be hard to code, and just not look right.